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5813 MANTALCINO DR, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

4 bed3 bath2,897 sqftBuilt 2017

Property at a Glance

This home is estimated between $483,677 and $778,875, with a best estimate of $584,119. That places the property above the H121413C - SIENA median of $406,354, in a neighborhood that declined 5.4% over the past year.

Estimated Value Range

$483,677 $778,875
Best Estimate
$584,119
WCAD Value
$458,604
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in H121413C - SIENA, this home's estimated market value is between $483,677 and $778,875. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

5857 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,448 sqft Built 2017
Raw Value $421,647
Adjusted Value $516,570

Adjusted +$94,923 for 449 sqft more living space. Net adjustment: +$94,923.

6101 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 3 bath 1,887 sqft Built 2016
Raw Value $423,749
Adjusted Value $639,501

Adjusted +$213,523 for 1,010 sqft more living space and +$2,229 for being newer. Net adjustment: +$215,752.

5905 MANTALCINO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
4 bed 4 bath 2,328 sqft Built 2015
Raw Value $459,370
Adjusted Value $584,119

Adjusted +$120,292 for 569 sqft more living space and +$4,457 for being newer. Net adjustment: +$124,749.

8002 AREZZO DR, ROUND ROCK, TX 78665
0.00 mi 100% similar Same subdivision
3 bed 2 bath 2,685 sqft Built 2018
Raw Value $441,087
Adjusted Value $483,677

Adjusted +$44,819 for 212 sqft more living space and -$2,229 for being older. Net adjustment: +$42,590.

7832 LEONARDO DR, ROUND ROCK, TX 78665
0.00 mi 99% similar Same subdivision
4 bed 3 bath 1,575 sqft Built 2017
Raw Value $499,392
Adjusted Value $778,875

Adjusted +$279,483 for 1,322 sqft more living space. Net adjustment: +$279,483.

The Neighborhood

This home is valued 12.9% above the H121413C - SIENA median of $406,354. With 1,611 homes in the subdivision, the property sits in the upper tier. Note that values in this subdivision declined 5.4% over the past year.

H121413C - SIENA

typical
1,611 Properties
$406,354 Median Value
-5.4% YoY Change
1% Have Pool
100% Have Garage
This Home
$458,604
Median
$406,354

This home is +12.9% above the subdivision median.

Tax Analysis

The estimated annual property tax is $10,556 across all districts. With a homestead exemption claimed, that drops to $8,784 — saving $1,772 per year. That's $732 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Hutto ISDSchool1.2052%$5,527
Siena MUD #1MUD0.5250%$2,408
Williamson CountyCounty0.3694%$1,694
Williamson County ESD #3 - HuttoESD0.1000%$459
Williamson County FM/RdCounty0.0443%$203
EWC Higher Ed Centerspecial0.0409%$187
Upper Brushy Creek WCIDWater0.0170%$78
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.3018%$10,556

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $584,119 would pay approximately $3,646 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/19/2026.

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